I before in Minecraft I K just showing you were able to hold down what you were crafting to rapid craft the item until you let go of the item. Now  you actually have to tap each time you want to craft some thing instead of holding it down to craft multiple stacks of the same thing. Like now if you have a inventory for bamboo you want to craft sticks you have to tap each time for each stick whereas if you had rapid craft you would just hold down what you wanted to craft and the game would craft it for you at a rapid speed until you let go.